title: Increase in antibiotic resistance in Haemophilus influenzae in the United Kingdom since 1977.
mesh_terms: D000667:Ampicillin / Q000494:pharmacology*; D006193:Haemophilus influenzae / Q000187:drug effects*; D010403:Penicillin Resistance; D006113:United Kingdom
chemical_list: D000667:Ampicillin